Essays about: "VLF"

Showing result 1 - 5 of 16 essays containing the word VLF.

1. 1. Geological characterisation of geophysical lineaments as part of the expanded site descriptive model around the planned repository site for high-level nuclear waste, Forsmark, Sweden

   University essay from Lunds universitet/Geologiska institutionen

   Author : Aron Bakker; [2021]
   Keywords : Forsmark; deformation zones; Svecokarelian; Sveconorwegian; ductile-brittle transition; brittle deformation; mylonite; Earth and Environmental Sciences;

   Abstract : The Swedish Nuclear Fuel and Waste Management Co. (SKB) started a project in 2020 near Forsmark, Sweden with the aim to expand the deformation zone model to encompass the entire catchment area around the planned repository for spent nuclear fuel. READ MORE

3. 2. Using Very-Low-Frequency Electromagnetics (VLF-EM) for geophysical exploration at Albertine Graben, Uganda : a new CAD approach for 3D data blending

   University essay from Lunds universitet/Geologiska institutionen

   Author : David Eggert; [2019]
   Keywords : Albertine Graben; EAR; East-African-Rift; Exploration; Geology; Geophysics; Ore; Uganda; Very Low Frequency; VLF-EM; Earth and Environmental Sciences;

   Abstract : Elektromagnetiska vågor, även kända som radiovågor, är vågor som sprider sig med låga frekvenser från 3 till 30 kHz. Dessa lågfrekventa vågor används vanligtvis när man önskar kommunicera med ubåtar. De kan emellertid också användas på land för att mäta skillnader i jord– och bergarters elektriska konduktivitet. READ MORE

4. 3. NON-CONTACT BASED PERSON’S SLEEPINESS DETECTION USING HEART RATE VARIABILITY

   University essay from Mälardalens högskola/Akademin för innovation, design och teknik

   Author : Fanny Danielsson; [2019]
   Keywords : sleepiness; machine learning; heart rate variability;

   Abstract : Today many strategies of monitoring health status and well-being are done through measurementmethods that are connected to the body, e.g. sensors or electrodes. These are often complicatedand requires personal assistance in order to use, because of advanced hardware and attachmentissues. READ MORE

5. 4. Implementing VLF as diagnostic test for HV motors and generators : A comparative study of diagnostic tests performed at different frequencies

   University essay from Uppsala universitet/Institutionen för teknikvetenskaper

   Author : Niklas Hedlund; [2019]
   Keywords : Dissipation factor; epoxy mica insulation; partial discharges; rotating machines; stator winding insulation; very low frequency;

   Abstract : High voltage testing of the stator winding insulation is one of the most recognized methods used to determine the state of degradation in the insulation. HV tests performed at 0.1 Hz do have potential advantages compared to more traditional 50 Hz tests. READ MORE

6. 5. Groundwater flow paths in fractured crystalline bedrock : Electromagnetic VLF measurements and modelling of a groundwater basin in Svanberga, Sweden

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Rasmus Thunell; [2018]
   Keywords : Groundwater; modelling; geophysics; comsol; VLF;

   Abstract : Sweden is a country with a relatively high number of private wells, where about 1.2 million inhabitants in permanent housing and an equal amount in summer housing relies on private wells as their drinking water supply. At the same time the market for drinking water treatment products is unregulated regarding quality and requirements are needed. READ MORE